Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/581#issuecomment-95528015
`NetUtils.findConnectingAddress` is a useful util, when you know that the
endpoint is up already. If you can make the assumption that the master is
running already you can use that. For remote environments, this is probably a
fair assumption. For local environments, this may not matter anyways, localhost
should work there.
Beware of the setups where you start the cluster from one machine (that
starts the master on that machine) and launch the program from the same one.
This whole network discovery is simply a bit tricky ;-)
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